PPB_NOINTR
return (ppb_poll_bus(bus, 4, mask, status, PPB_NOINTR | PPB_POLL));
return (ppb_poll_bus(bus, 100, mask, status, PPB_NOINTR | PPB_POLL));
SELECT | nFAULT, PPB_NOINTR | PPB_POLL)) {
case PPB_NOINTR:
case (PPB_WAIT | PPB_NOINTR):